US4157274A - Package strapping device with floating heat tongue - Google Patents
Package strapping device with floating heat tongue Download PDFInfo
- Publication number
- US4157274A US4157274A US05/912,511 US91251178A US4157274A US 4157274 A US4157274 A US 4157274A US 91251178 A US91251178 A US 91251178A US 4157274 A US4157274 A US 4157274A
- Authority
- US
- United States
- Prior art keywords
- heat
- holder
- tongue
- run
- heat tongue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B13/00—Bundling articles
- B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
- B65B13/24—Securing ends of binding material
- B65B13/32—Securing ends of binding material by welding, soldering, or heat-sealing; by applying adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
- B29C65/1432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface direct heating of the surfaces to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
- B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
- B29C66/4324—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms for making closed loops, e.g. belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/49—Internally supporting the, e.g. tubular, article during joining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8167—Quick change joining tools or surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/727—Fastening elements
- B29L2031/7276—Straps or the like
Definitions
- the prior heat tongues and holders of which applicants are presently aware were directed primarily toward a rigid mounting of the heat tongue in a fixed position with respect to a holder and/or heat block.
- the heat block and holder with the rigidly connected heat tongue extending therefrom were adapted to be moved toward a strapping station so as to interpose the heat tongue between overlapping portions of plastic strap.
- Pressure plates located above and below the overlapping portions of the plastic strap were then moved relatively toward one another (either one or both might be moved) so as to compress the strap with the heat tongue therebetween to heat the strap. Subsequently, one or the other or both of the pressure plates were retracted to allow the heat tongue and heat tongue holder to be withdrawn. The pressure plates were then actuated to compress the heated, overlapping strap portions to form a heat seal.
- the present invention is directed to an improvement in an apparatus adapted to form a heat seal in overlapping portions of a plastic strap.
- a device is utilized in a package strapping machine using plastic strap.
- an apparatus is provided which includes a heat tongue holder and means for advancing and retracting a holder toward and away from overlapping portions of plastic strap.
- Means for compressing the overlapping portions of the strap during a heat seal operation are also provided and include an upper pressure plate and a lower pressure plate with the lower pressure plate movable upwardly toward the upper portion plate to compress the overlapping portions of plastic strap therebetween.
- the improvement is primarily directed toward an improved floating heat tongue mounted within the heat tongue holder and heater.
- the metal heat tongue has a first relatively flat run adapted to be interposed between the overlapping strap portions and a second relatively flat run forming an angle with respect to the first run.
- Means for mounting the heat tongue within the holder are provided in the form of a recessed channel running from an upper portion of the holder in a substantially vertical direction. The channel is adapted to slidably receive the second run of the heat tongue within the holder and has a cross section complimentary to and just slightly larger than the cross section of a second run of a heat tongue.
- the second run of the heat tongue is inserted into the channel and the first run abuts an upper portion of the holder to limit further downward movement of the heat tongue.
- the heat tongue is maintained in a fixed predetermined position in relation to the holder so that when the holder is advanced to interpose the first run of the heat tongue between overlapping portions of the plastic strap, the heat tongue is properly located.
- the heat tongue is then free to slide vertically between compressed portions of the overlapping plastic strap with the relative movement of the pressure plates.
- the heat tongue is then free to automatically return to its fixed predetermined position in the holder after the holder is withdrawn from proximity of the overlapping strap portions.
- FIG. 1 is a perspective view of the heat tongue and holder of this invention
- FIG. 2 is an end view of the device of FIG. 1 taken along the line 2--2;
- FIG. 3 is a cross-sectional view of the device shown in FIG. 2 taken substantially along the lines 3--3;
- FIG. 4 is a further cross-sectional view of the device shown in FIG. 3 taken substantially along the lines 4--4.
- the present invention is related to a specific improvement in a heat tongue and holder therefor for use in conjunction with a package strapping machine adapted to form a heat seal in overlapping portions of plastic strap. Because a variety of such package strapping devices are well known in the art, a detailed description of such device will not be provided except in so far as is believed necessary to understand the present invention.
- FIG. 3 a package strapping device to form a heat seal in overlapping portions of plastic strapping is shown in pertinent part.
- an upper pressure plate 10 is shown in side view together with a lower pressure plate 12.
- the pressure plate 10 is vertically fixed during the strap heating and sealing operation and the lower pressure plate 12 is actuated by power means (not shown) to move upwardly to compress overlapping strap portions 14 and 16.
- a heat tongue is inserted between overlapping portions of the plastic strap 14 and 16 and then the lower pressure plate 12 is advanced upwardly toward upper pressure plate 10 to compress the overlapping strap portions 14 and 16 so that these strap portions 14 and 16 make contact with the heat tongue and thus heat up the strap portions. Subsequently, the lower pressure plate 12 is withdrawn slightly, the heat tongue is moved out of position between the overlapping strap portions 14 and 16, and then the pressure plate 12 is again advanced upwardly to compress the heated strap portions 14 and 16 so as to form a heat seal therebetween.
- a heat tongue 18 is provided having a first substantially flat run 20 and a second substantially flat run 22.
- the heat tongue is metal and in a preferred form may be formed of brass.
- the first run 20 is substantially rectangular as is the second run 22.
- the angle formed between the intersection of first run 20 with second run 22 is, in the preferred embodiment, a right angle.
- the heat tongue 18 was formed of brass approximately 0.082 inches thick with the first run forming a rectangle approximately 11/2 inches by 0.935 inches, and the second run forming a rectangle approximately 31/8 inches by 0.995 inches.
- a heat tongue holder 24 is also provided and adapted to slidably receive the heat tongue 18 as will be more fully explained.
- the holder 24 includes a heat supply source (not shown) within the holder 24 which is adapted to radiate heat to the heat tongue 18 floatably mounted therein. Attached to the holder 24 is a means 26 for advancing the holder toward and away from the overlapping strap portion 14 and 16 to interpose the first run 20 between the overlapping strap portions 14 and 16.
- the means 26 includes parallel action linkage (not shown) adapted to advance and retract the holder 26 on a parallel action basis.
- the holder 24 includes a recessed channel 28 defined therein.
- the recessed channel 28 is bounded on three sides by walls 30, 32 and 34 defined in the main body of the holder 24.
- the channel 28 is defined by the inner surface 36 of a holder plate 38.
- the plate 38 is rigidly connected to the body of holder 24 by means of flathead machine screws 40.
- the channel 28 is defined so as to provide a cross-section as shown in FIG. 4 complementary to and slightly larger than the cross-section provided by the second run 22 of the heat tongue 18.
- the position of the heat tongue 18 shown in the drawings FIGS. 1-4 is an extended position with the heat tongue 18 moved vertically upwardly so as to provide a better view of the heat tongue 18.
- the heat tongue 18 In its normal, rest position the heat tongue 18 will slide downwardly vertically until the lower surface of the first run 20 abuts against the upper surface 42 of the plate 38.
- the plate 38 may be selected to have a geometry such that the upper surface 42 will provide the vertical predetermined rest position of the heat tongue 18 within the holder 24.
- heat tongue 18 When the heat tongue 18 is in place within channel 28, it is heated by virtue of a heater assembly (not shown) contained within the holder 24 which radiates heat to the second run 22 of the heat tongue 18. Because the heat tongue 18 is metal, heat is then conducted throughout the heat tongue to the first run 20 thereof for operation to heat overlapping portions of the strap 14 and 16. When the heat tongue 18 is inserted into the channel 28, it moves downwardly to its fixed, predetermined position with the undersurface of the first run 20 abutting the upper surface 42 of the plate 38.
- a heater assembly not shown
- the advancing means 26 allows the holder to move in a parallel manner, the vertical location and attitude of the heat tongue 18 is maintained while the heat tongue 18 is being advanced to its heat seal position (i.e., interposed between overlapping strap portions 14 and 16). In this way the heat tongue is maintained in a desired attitude during the heating operation.
- the heat tongue 18 is free to vertically slide upwardly when the lower pressure plate 12 is advanced upwardly. In this fashion, no unnecessary shock or jarring is delivered to the holder 24 or to the associated heating assembly. Also, the plates are free to act on the heat tongue 18 to move it to the position where best contact of straps 14 and 16 is achieved. If the extended position of pressure plate 12 is varied, the free floating heat tongue 18 can accommodate the variance without any additional adjustment.
- the first run 20 is at a right angle with respect to the second run 22 of the heat tongue 18. In this fashion, the holder may be advanced with the parallel action linkage so that the first run 20 of the heat tongue 18 is maintained in a horizontal plane which is the same plane in which the cooperating surfaces of the upper and lower pressure plates are maintained.
Abstract
Description
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/912,511 US4157274A (en) | 1978-06-05 | 1978-06-05 | Package strapping device with floating heat tongue |
CA000324238A CA1119936A (en) | 1978-06-05 | 1979-03-27 | Package strapping device with floating heat tongue |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/912,511 US4157274A (en) | 1978-06-05 | 1978-06-05 | Package strapping device with floating heat tongue |
Publications (1)
Publication Number | Publication Date |
---|---|
US4157274A true US4157274A (en) | 1979-06-05 |
Family
ID=25432054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/912,511 Expired - Lifetime US4157274A (en) | 1978-06-05 | 1978-06-05 | Package strapping device with floating heat tongue |
Country Status (2)
Country | Link |
---|---|
US (1) | US4157274A (en) |
CA (1) | CA1119936A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4288270A (en) * | 1979-06-04 | 1981-09-08 | Interlake, Inc. | Heat-sealing strapping machine |
US5870950A (en) * | 1995-10-24 | 1999-02-16 | L & P Property Management Company | Automatic tie system for baler |
US6032575A (en) * | 1998-07-16 | 2000-03-07 | L&P Property Management Company | Automatic baler with tying system having simultaneously engaged twister pinions |
US20100117310A1 (en) * | 2008-11-07 | 2010-05-13 | Saint-Gobain Performance Plastics Corporation | Large diameter thermoplastic seal |
US20100116422A1 (en) * | 2008-11-07 | 2010-05-13 | Saint-Gobain Performance Plastics Corporation | Method of forming large diameter thermoplastic seal |
US10093069B2 (en) | 2012-05-23 | 2018-10-09 | Saint-Gobain Performance Plastics Corporation | Method of forming large diameter thermoplastic seal |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3897296A (en) * | 1973-07-12 | 1975-07-29 | Amchem Prod | Thermal welding of plastic |
US3914153A (en) * | 1972-12-19 | 1975-10-21 | Ogawa Hoso System Kabushiki Ka | Method of and apparatus for fusion-bonding thermoplastic tape in strapping machine |
US4016023A (en) * | 1974-07-18 | 1977-04-05 | Masaho Takami | Apparatus for automatically binding package |
-
1978
- 1978-06-05 US US05/912,511 patent/US4157274A/en not_active Expired - Lifetime
-
1979
- 1979-03-27 CA CA000324238A patent/CA1119936A/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3914153A (en) * | 1972-12-19 | 1975-10-21 | Ogawa Hoso System Kabushiki Ka | Method of and apparatus for fusion-bonding thermoplastic tape in strapping machine |
US3897296A (en) * | 1973-07-12 | 1975-07-29 | Amchem Prod | Thermal welding of plastic |
US4016023A (en) * | 1974-07-18 | 1977-04-05 | Masaho Takami | Apparatus for automatically binding package |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4288270A (en) * | 1979-06-04 | 1981-09-08 | Interlake, Inc. | Heat-sealing strapping machine |
US5870950A (en) * | 1995-10-24 | 1999-02-16 | L & P Property Management Company | Automatic tie system for baler |
US6032575A (en) * | 1998-07-16 | 2000-03-07 | L&P Property Management Company | Automatic baler with tying system having simultaneously engaged twister pinions |
US20100117310A1 (en) * | 2008-11-07 | 2010-05-13 | Saint-Gobain Performance Plastics Corporation | Large diameter thermoplastic seal |
US20100116422A1 (en) * | 2008-11-07 | 2010-05-13 | Saint-Gobain Performance Plastics Corporation | Method of forming large diameter thermoplastic seal |
US8721823B2 (en) | 2008-11-07 | 2014-05-13 | Saint-Gobain Performance Plastics Corporation | Method of forming large diameter thermoplastic seal |
US9702462B2 (en) | 2008-11-07 | 2017-07-11 | Saint-Gobain Performance Plastics Corporation | Large diameter thermoplastic seal |
US10093069B2 (en) | 2012-05-23 | 2018-10-09 | Saint-Gobain Performance Plastics Corporation | Method of forming large diameter thermoplastic seal |
Also Published As
Publication number | Publication date |
---|---|
CA1119936A (en) | 1982-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: UNITED STATES STEEL CORPORATION, A DE CORP Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:STRAPEX CORPORATION;REEL/FRAME:004410/0399 Effective date: 19850507 Owner name: UNITED STATES STEEL CORPORATION, PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STRAPEX CORPORATION;REEL/FRAME:004410/0399 Effective date: 19850507 |
|
AS | Assignment |
Owner name: KEYCON INDUSTRIES, INC., 4835 LBJ FREEWAY, DALLAS, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KEYSTONE CONSOLIDATED INDUSTRIES, INC.;REEL/FRAME:004457/0745 Effective date: 19850911 |
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AS | Assignment |
Owner name: LLC CORPORATION, 4835 LBJ FREEWAY, DALLAS, TEXAS, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KEYCON INDUSTRIES, INC., A CORP OF NEV.;REEL/FRAME:004533/0100 Effective date: 19860220 |
|
AS | Assignment |
Owner name: SIGNAL CAPITAL EQUITIES, INC. Free format text: SECURITY INTEREST;ASSIGNOR:STANWICH HOLDING, INC.;REEL/FRAME:004647/0922 Effective date: 19861105 |
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AS | Assignment |
Owner name: STANWICH HOLDINGS, INC., A DE. CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:USX CORPORATION;REEL/FRAME:004658/0185 Effective date: 19861030 |
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AS | Assignment |
Owner name: SIGNAL CAPITAL EQUITIES, INC., NEW HAMPSHIRE Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:U.S. STEEL SUPPLY INC.;REEL/FRAME:005025/0539 Effective date: 19880429 |
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AS | Assignment |
Owner name: SIGNODE CORPORATION, OKLAHOMA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:U.S. STEEL SUPPLY INC., A CORP. OF DE.;REEL/FRAME:005123/0058 Effective date: 19890428 |
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AS | Assignment |
Owner name: L&P PROPERTY MANAGEMENT COMPANY, ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ILLINOIS TOOL WORKS, INC.;REEL/FRAME:007648/0196 Effective date: 19950818 |